Look for v4dreams.com, he has lotsa carb tutorials & other helpful stuff, in “maintenance” category, well illustrated w/pics!
Borg..don’t know where your info is from, parts list I’ve found(mrcycle) shows needles as same #’s, also no longer available. If you have parts in...
Some black wires(most) on reg/react are voltage sensing & consequently should be connected to a 12V source somewhere on the bike, often the ign...
PS..different thickness of head gskts perhaps?
The heads hold gear tower(s)? Or are they fastened onto the crankcase/cylinder block? Any chance that tower is a tooth off on the crankshaft?...
Fuel tap/valve is on/off only, you have to look for it a bit, helps to raise tank @ rear a few cm. Thru bolt is typically easy to remove but...
PS. This is what I use to clean those copper tracks/traces. [ATTACH]
Congrats, even if you haven’t fixed the glitch you’ve apparently made it work right! That’s my usual result with intermittent electrickery...
Good idea, even then you need to be very careful/gentle, those copper tracks are delicate, thin, & nearly impossible to solder back together
A tiny smear of oxgard(not a di-elec) , applied via toothpick, would be my approach, after your measure(s)
PS, try applying pressure on shift lever constantly after selecting 6th, might be able to “hold” gears engaged. Still requires lotsa work to fix...
You may have answered the question or at least narrowed possibilities, seems to be a chance that 6th gear is experiencing a mechanical...
It’s possible for a drive(countershaft) sprocket to be worn(“hooked”) in such a manner/degree that applying throttle & accelerating causes this...
If you have an electric heat gun(or hairdryer) some chance that warming cover might help, especially @ the mounting / alignment dowels
Make a slurry/mix of abs plastic bits(fine), using acetone to dissolve. Will be a better glue than jbweld. LEGO is abs if you can’t find elsewhere...
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